diff --git a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ActivityStatsTechSpecificInfo.aidl b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ActivityStatsTechSpecificInfo.aidl
index b44ab71e3f..080a877145 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ActivityStatsTechSpecificInfo.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ActivityStatsTechSpecificInfo.aidl
@@ -35,7 +35,7 @@ package android.hardware.radio.modem;
 /* @hide */
 @JavaDerive(toString=true) @VintfStability
 parcelable ActivityStatsTechSpecificInfo {
-  android.hardware.radio.AccessNetwork rat;
+  android.hardware.radio.AccessNetwork rat = android.hardware.radio.AccessNetwork.UNKNOWN;
   int frequencyRange;
   int[] txmModetimeMs;
   int rxModeTimeMs;
diff --git a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/DeviceStateType.aidl b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/DeviceStateType.aidl
index 1159f93b51..023658ce45 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/DeviceStateType.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/DeviceStateType.aidl
@@ -33,7 +33,7 @@
 
 package android.hardware.radio.modem;
 /* @hide */
-@Backing(type="int") @JavaDerive(toString=true) @VintfStability
+@Backing(type="int") @JavaDerive(toString=true) @SuppressWarnings(value={"redundant-name"}) @VintfStability
 enum DeviceStateType {
   POWER_SAVE_MODE,
   CHARGING_STATE,
diff --git a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/HardwareConfigModem.aidl b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/HardwareConfigModem.aidl
index d453cb01c3..7d5537fc2a 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/HardwareConfigModem.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/HardwareConfigModem.aidl
@@ -36,7 +36,7 @@ package android.hardware.radio.modem;
 @JavaDerive(toString=true) @VintfStability
 parcelable HardwareConfigModem {
   int rilModel;
-  android.hardware.radio.RadioTechnology rat;
+  android.hardware.radio.RadioTechnology rat = android.hardware.radio.RadioTechnology.UNKNOWN;
   int maxVoiceCalls;
   int maxDataCalls;
   int maxStandby;
diff --git a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ImeiInfo.aidl b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ImeiInfo.aidl
index a2df30ddfa..96fb5a8974 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ImeiInfo.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ImeiInfo.aidl
@@ -35,11 +35,12 @@ package android.hardware.radio.modem;
 /* @hide */
 @JavaDerive(toString=true) @VintfStability
 parcelable ImeiInfo {
-  android.hardware.radio.modem.ImeiInfo.ImeiType type;
+  android.hardware.radio.modem.ImeiInfo.ImeiType type = android.hardware.radio.modem.ImeiInfo.ImeiType.INVALID;
   String imei;
   String svn;
   @Backing(type="int") @VintfStability
   enum ImeiType {
+    INVALID = 0,
     PRIMARY = 1,
     SECONDARY = 2,
   }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/NvItem.aidl b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/NvItem.aidl
index f97b9a2017..bafcd19d9c 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/NvItem.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/NvItem.aidl
@@ -32,51 +32,175 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.radio.modem;
-/**
- * @hide
- * @deprecated NV APIs are deprecated starting from Android U.
- */
+/* @hide */
 @Backing(type="int") @JavaDerive(toString=true) @VintfStability
 enum NvItem {
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
+  INVALID = 0,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_MEID = 1,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_MIN = 2,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_MDN = 3,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_ACCOLC = 4,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   DEVICE_MSL = 11,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   RTN_RECONDITIONED_STATUS = 12,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   RTN_ACTIVATION_DATE = 13,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   RTN_LIFE_TIMER = 14,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   RTN_LIFE_CALLS = 15,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   RTN_LIFE_DATA_TX = 16,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   RTN_LIFE_DATA_RX = 17,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   OMADM_HFA_LEVEL = 18,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_NAI = 31,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_HOME_ADDRESS = 32,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_AAA_AUTH = 33,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_HA_AUTH = 34,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_PRI_HA_ADDR = 35,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_SEC_HA_ADDR = 36,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_REV_TUN_PREF = 37,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_HA_SPI = 38,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_AAA_SPI = 39,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_MN_HA_SS = 40,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   MIP_PROFILE_MN_AAA_SS = 41,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_PRL_VERSION = 51,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_BC10 = 52,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_BC14 = 53,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_SO68 = 54,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_SO73_COP0 = 55,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_SO73_COP1TO7 = 56,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_1X_ADVANCED_ENABLED = 57,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_EHRPD_ENABLED = 58,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   CDMA_EHRPD_FORCED = 59,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   LTE_BAND_ENABLE_25 = 71,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   LTE_BAND_ENABLE_26 = 72,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   LTE_BAND_ENABLE_41 = 73,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   LTE_SCAN_PRIORITY_25 = 74,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   LTE_SCAN_PRIORITY_26 = 75,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   LTE_SCAN_PRIORITY_41 = 76,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   LTE_HIDDEN_BAND_PRIORITY_25 = 77,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   LTE_HIDDEN_BAND_PRIORITY_26 = 78,
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   LTE_HIDDEN_BAND_PRIORITY_41 = 79,
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/NvWriteItem.aidl b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/NvWriteItem.aidl
index c38ceb779a..c94124680e 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/NvWriteItem.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/NvWriteItem.aidl
@@ -32,12 +32,15 @@
 // later when a module using the interface is updated, e.g., Mainline modules.
 
 package android.hardware.radio.modem;
-/**
- * @hide
- * @deprecated NV APIs are deprecated starting from Android U.
- */
+/* @hide */
 @JavaDerive(toString=true) @VintfStability
 parcelable NvWriteItem {
-  android.hardware.radio.modem.NvItem itemId;
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
+  android.hardware.radio.modem.NvItem itemId = android.hardware.radio.modem.NvItem.INVALID;
+  /**
+   * @deprecated NV APIs are deprecated starting from Android U.
+   */
   String value;
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ResetNvType.aidl b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ResetNvType.aidl
index b4208b7754..e9937f068c 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ResetNvType.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/ResetNvType.aidl
@@ -33,7 +33,7 @@
 
 package android.hardware.radio.modem;
 /* @hide */
-@Backing(type="int") @JavaDerive(toString=true) @VintfStability
+@Backing(type="int") @JavaDerive(toString=true) @SuppressWarnings(value={"redundant-name"}) @VintfStability
 enum ResetNvType {
   RELOAD,
   ERASE,
diff --git a/radio/aidl/android/hardware/radio/modem/ActivityStatsTechSpecificInfo.aidl b/radio/aidl/android/hardware/radio/modem/ActivityStatsTechSpecificInfo.aidl
index 7ca4021bf8..6ad47fc893 100644
--- a/radio/aidl/android/hardware/radio/modem/ActivityStatsTechSpecificInfo.aidl
+++ b/radio/aidl/android/hardware/radio/modem/ActivityStatsTechSpecificInfo.aidl
@@ -36,7 +36,7 @@ parcelable ActivityStatsTechSpecificInfo {
      * Radio access technology. Set UNKNOWN if the Activity statistics
      * is RAT independent.
      */
-    AccessNetwork rat;
+    AccessNetwork rat = AccessNetwork.UNKNOWN;
     /**
      * Frequency range. Values are FREQUENCY_RANGE_
      * Set FREQUENCY_RANGE_UNKNOWN if the Activity statistics when frequency range
diff --git a/radio/aidl/android/hardware/radio/modem/DeviceStateType.aidl b/radio/aidl/android/hardware/radio/modem/DeviceStateType.aidl
index c1f4cd6b53..86df92005d 100644
--- a/radio/aidl/android/hardware/radio/modem/DeviceStateType.aidl
+++ b/radio/aidl/android/hardware/radio/modem/DeviceStateType.aidl
@@ -20,6 +20,7 @@ package android.hardware.radio.modem;
 @VintfStability
 @Backing(type="int")
 @JavaDerive(toString=true)
+@SuppressWarnings(value={"redundant-name"})
 enum DeviceStateType {
     /**
      * Device power save mode (provided by PowerManager). True indicates the device is in
diff --git a/radio/aidl/android/hardware/radio/modem/HardwareConfigModem.aidl b/radio/aidl/android/hardware/radio/modem/HardwareConfigModem.aidl
index 1ba3562e62..4818c9eac5 100644
--- a/radio/aidl/android/hardware/radio/modem/HardwareConfigModem.aidl
+++ b/radio/aidl/android/hardware/radio/modem/HardwareConfigModem.aidl
@@ -34,7 +34,7 @@ parcelable HardwareConfigModem {
     /**
      * Bitset value, based on RadioTechnology.
      */
-    RadioTechnology rat;
+    RadioTechnology rat = RadioTechnology.UNKNOWN;
     /**
      * Maximum number of concurrent active voice calls.
      */
diff --git a/radio/aidl/android/hardware/radio/modem/ImeiInfo.aidl b/radio/aidl/android/hardware/radio/modem/ImeiInfo.aidl
index 6d33505233..82fade5d87 100644
--- a/radio/aidl/android/hardware/radio/modem/ImeiInfo.aidl
+++ b/radio/aidl/android/hardware/radio/modem/ImeiInfo.aidl
@@ -29,6 +29,8 @@ parcelable ImeiInfo {
      * ImeiType enum is used identify the IMEI as primary or secondary as mentioned in GSMA TS.37
      */
     enum ImeiType {
+        /** Must not be used. */
+        INVALID = 0,
         /**
          * This is the primary IMEI of the device as mentioned in the GSMA TS.37. In a multi-SIM
          * device the modem must set one IMEI with this type as mentioned in GSMA TS37_2.2_REQ_8.
@@ -40,7 +42,7 @@ parcelable ImeiInfo {
     }
 
     /** Primary or secondary IMEI as mentioned in GSMA spec TS.37 */
-    ImeiType type;
+    ImeiType type = ImeiType.INVALID;
     /**
      * IMEI value, see 3gpp spec 23.003 section 6. Note: This primary IMEI mapping must be
      * permanent throughout the lifetime of the device irrespective of the factory data reset,
diff --git a/radio/aidl/android/hardware/radio/modem/NvItem.aidl b/radio/aidl/android/hardware/radio/modem/NvItem.aidl
index b405137f56..d646ff7da2 100644
--- a/radio/aidl/android/hardware/radio/modem/NvItem.aidl
+++ b/radio/aidl/android/hardware/radio/modem/NvItem.aidl
@@ -17,180 +17,224 @@
 package android.hardware.radio.modem;
 
 /**
- * @deprecated NV APIs are deprecated starting from Android U.
  * @hide
  */
 @VintfStability
 @Backing(type="int")
 @JavaDerive(toString=true)
 enum NvItem {
+    /**
+     * @deprecated NV APIs are deprecated starting from Android U.
+     */
+    INVALID = 0,
     /**
      * CDMA radio and account information (items 1-10)
      * CDMA MEID (hex)
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_MEID = 1,
     /**
      * CDMA MIN (MSID)
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_MIN = 2,
     /**
      * CDMA MDN
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_MDN = 3,
     /**
      * CDMA access overload control
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_ACCOLC = 4,
     /**
      * Carrier device provisioning (items 11-30)
      * Device MSL
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     DEVICE_MSL = 11,
     /**
      * RTN reconditioned status
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     RTN_RECONDITIONED_STATUS = 12,
     /**
      * RTN activation date
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     RTN_ACTIVATION_DATE = 13,
     /**
      * RTN life timer
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     RTN_LIFE_TIMER = 14,
     /**
      * RTN life calls
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     RTN_LIFE_CALLS = 15,
     /**
      * RTN life data TX
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     RTN_LIFE_DATA_TX = 16,
     /**
      * RTN life data RX
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     RTN_LIFE_DATA_RX = 17,
     /**
      * HFA in progress
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     OMADM_HFA_LEVEL = 18,
     /**
      * Mobile IP profile information (items 31-50)
      * NAI realm
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_NAI = 31,
     /**
      * MIP home address
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_HOME_ADDRESS = 32,
     /**
      * AAA auth
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_AAA_AUTH = 33,
     /**
      * HA auth
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_HA_AUTH = 34,
     /**
      * Primary HA address
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_PRI_HA_ADDR = 35,
     /**
      * Secondary HA address
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_SEC_HA_ADDR = 36,
     /**
      * Reverse TUN preference
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_REV_TUN_PREF = 37,
     /**
      * HA SPI
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_HA_SPI = 38,
     /**
      * AAA SPI
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_AAA_SPI = 39,
     /**
      * HA shared secret
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_MN_HA_SS = 40,
     /**
      * AAA shared secret
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     MIP_PROFILE_MN_AAA_SS = 41,
     /**
      * CDMA network and band config (items 51-70)
      * CDMA PRL version
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_PRL_VERSION = 51,
     /**
      * CDMA band class 10
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_BC10 = 52,
     /**
      * CDMA band class 14
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_BC14 = 53,
     /**
      * CDMA SO68
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_SO68 = 54,
     /**
      * CDMA SO73 COP0
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_SO73_COP0 = 55,
     /**
      * CDMA SO73 COP1-7
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_SO73_COP1TO7 = 56,
     /**
      * CDMA 1X Advanced enabled
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_1X_ADVANCED_ENABLED = 57,
     /**
      * CDMA eHRPD enabled
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_EHRPD_ENABLED = 58,
     /**
      * CDMA eHRPD forced
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     CDMA_EHRPD_FORCED = 59,
     /**
      * LTE network and band config (items 71-90)
      * LTE band 25 enabled
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     LTE_BAND_ENABLE_25 = 71,
     /**
      * LTE band 26 enabled
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     LTE_BAND_ENABLE_26 = 72,
     /**
      * LTE band 41 enabled
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     LTE_BAND_ENABLE_41 = 73,
     /**
      * LTE band 25 scan priority
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     LTE_SCAN_PRIORITY_25 = 74,
     /**
      * LTE band 26 scan priority
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     LTE_SCAN_PRIORITY_26 = 75,
     /**
      * LTE band 41 scan priority
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     LTE_SCAN_PRIORITY_41 = 76,
     /**
      * LTE hidden band 25 priority
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     LTE_HIDDEN_BAND_PRIORITY_25 = 77,
     /**
      * LTE hidden band 26 priority
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     LTE_HIDDEN_BAND_PRIORITY_26 = 78,
     /**
      * LTE hidden band 41 priority
+     * @deprecated NV APIs are deprecated starting from Android U.
      */
     LTE_HIDDEN_BAND_PRIORITY_41 = 79,
 }
diff --git a/radio/aidl/android/hardware/radio/modem/NvWriteItem.aidl b/radio/aidl/android/hardware/radio/modem/NvWriteItem.aidl
index c57253b76b..482126a0ff 100644
--- a/radio/aidl/android/hardware/radio/modem/NvWriteItem.aidl
+++ b/radio/aidl/android/hardware/radio/modem/NvWriteItem.aidl
@@ -19,12 +19,17 @@ package android.hardware.radio.modem;
 import android.hardware.radio.modem.NvItem;
 
 /**
- * @deprecated NV APIs are deprecated starting from Android U.
  * @hide
  */
 @VintfStability
 @JavaDerive(toString=true)
 parcelable NvWriteItem {
-    NvItem itemId;
+    /**
+     * @deprecated NV APIs are deprecated starting from Android U.
+     */
+    NvItem itemId = NvItem.INVALID;
+    /**
+     * @deprecated NV APIs are deprecated starting from Android U.
+     */
     String value;
 }
diff --git a/radio/aidl/android/hardware/radio/modem/ResetNvType.aidl b/radio/aidl/android/hardware/radio/modem/ResetNvType.aidl
index e290a52635..b6be54dee0 100644
--- a/radio/aidl/android/hardware/radio/modem/ResetNvType.aidl
+++ b/radio/aidl/android/hardware/radio/modem/ResetNvType.aidl
@@ -23,6 +23,7 @@ package android.hardware.radio.modem;
 @VintfStability
 @Backing(type="int")
 @JavaDerive(toString=true)
+@SuppressWarnings(value={"redundant-name"})
 enum ResetNvType {
     /**
      * Reload all NV items